114
edits
Introduction to Arrhythmias: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 22: | Line 22: | ||
* What is the '''[[Conduction|QRS width]]'''? | * What is the '''[[Conduction|QRS width]]'''? | ||
**If the QRS < 120ms (i.e. a narrow complex), then it is either a [[Sinus node rhythms and arrhythmias|sinus arrhythmia]], [[Supraventricular Rhythms|supraventricular rhythm]] or a [[Junctional Tachycardias|junctional tachycardia]]. In tachycardias, this [[Media:Svt_algorythm_en.png|'''flowchart''']] will lead to the right diagnosis.<cite>ESCnarrowQRS</cite> | **If the QRS < 120ms (i.e. a narrow complex), then it is either a [[Sinus node rhythms and arrhythmias|sinus arrhythmia]], [[Supraventricular Rhythms|supraventricular rhythm]] or a [[Junctional Tachycardias|junctional tachycardia]]. In tachycardias, this [[Media:Svt_algorythm_en.png|'''flowchart''']] will lead to the right diagnosis.<cite>ESCnarrowQRS</cite> | ||
**If the QRS > 120ms it is either a [[Ventricular Arrhythmias|ventricular tachycardia]] or a [[Supraventricular Rhythms|supraventricular rhythm]] with additional [[Intraventricular Conduction|bundle branch block]]. This is a challenging | **If the QRS > 120ms it is either a [[Ventricular Arrhythmias|ventricular tachycardia]] or a [[Supraventricular Rhythms|supraventricular rhythm]] with additional [[Intraventricular Conduction|bundle branch block]]. This is a challenging diagnosis. Therefore a [[media:wideQRS_tachycardia_flow.png|'''flowchart''']] which incoporates the Brugada criteria for VT should be used.<cite>Brugada</cite> Another method to discriminate VT from SVT has been proposed by Vereckei et al.<cite>vereckei</cite>In that paper an excellent review is given on the subject by Dendi and Josephson.<cite>dendi</cite> | ||
* What is the '''[[Heart axis|Heart Axis]]''' and did it change? | * What is the '''[[Heart axis|Heart Axis]]''' and did it change? | ||
** If the heart axis turns significantly when compared to the heart axis during sinus rhythm a ventricular origin of the rhythm is more likely. | ** If the heart axis turns significantly when compared to the heart axis during sinus rhythm a ventricular origin of the rhythm is more likely. | ||